How can I eliminate static electricity when spray-painting on acrylic sheet plastic?

Hi, I'm trying to spray-paint one side of a sheet of acrylic (plexiglass) and it all goes fairly well except that I can't get the colour to go on evenly. The sprayed paint seems to dance before landing on the sheet in funny patterns. I'm guessing it has to do with static electricity. Does anyone know how I can reduce it, eliminate it or make it work in my favour?

There are plastic-specific primers that are used in the autobody field primarily because many plastics used on cars are hard to get ANYTHING to adhere to, however, there are a few brands that somehow negate the static.

A little trick of the trade is to use isopropyl alcohol and water. I use a 1:5 ratio, alcohol to water, anytime I'm custom painting plastic.